Check the fan cable connections.2. Yesterday I swapped the other printers' fuser unit into the troubled printer. I gather from reading this that this can be caused by either the door switch or the fan itself failing. Rh7-5297-000cn Defective main motor. 5.

Potentially a failing DC controller could also cause a fake fan error, but that is not common. Below is a description of each fan error, and the corresponding part# for that http://upintheaether.com/error-hp/hp-laserjet-4250-error-49-4c06.php Fan error.One of the cooling fans is bad. 2. Fan error.One of the cooling fans is bad. 2. HP LASER PRINTERS 1200, 2200, 3100, 3200, 4100 1. Rh7-5294-000cn

Check that nothing is hindering or blocking the fan. 4. In a larger printer with multiple fans, the error code is broken down: 57.1, 57.2, etc., with the number after the decimal point indicating which fan has the problem. Call us with any questions, local 608-831-2396 or toll-free 866-352-7108 .57.1 Cartridge Fan , Fan #5 replace part# RH7-5306-000CN for 9000, or part# RG5-5729-000CN for 9040/905057.3 Power Supply Fan , Fan The service manuals provide the designations.

Disconnect the power cable from the product, wait at least 30 seconds, then reconnect the power cable and wait for the product to initialize 2. Verify that nothing is hindering or blocking the fan.4. See Cooling fan, right side (HP LaserJet 4250/4300/4350 Series printers only). 3 Replace the dc controller PCA. Replace the bad fan.4.

There are 7 fans in the machine. controller board. Replace the D.C. controller.HP LASER PRINTER 4300 ONLY ERROR 57.4 1.

So along with that and an issuearound the stacker, the stacker itselfworks fine(yet consistantly jams) I'm looking for a ballpark estimate to get these issues resolved, to present to my supervisor. The fan 4 or the face down delivery ass'y.2. Respond to this 0 Read this thread http://www.fixyourownprinter.com/forums/laser/26620 by moe on Aug 19, 2005 at 11:46am Add comment Please sign in to comment 0 Hi all, I am getting the 57.3 The fan is not working so i figured i got a bad fan so i replaced it.